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2 years ago

Please help, consider function f. F(x) = square root x-1 which graph represents function f?

Mathematics

1 answer:

dmitriy555 [2]2 years ago

5 0

Answer:

still waiting for the ai to solve it

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HELP PLEASE 30 POINTS! WILL MARK BRAINLIEST IF CORRECT!!!!!

KATRIN_1 [288]

Answer:

See Below.

Step-by-step explanation:

We want to verify:

$\cos(x-y)-\cos(x+y)=2\sin(x)\sin(y)$

We will utilize the following identities:

$\cos(x-y)=\cos(x)\cos(y)+\sin(x)\sin(y)$

And:

$\cos(x+y)=\cos(x)\cos(y)-\sin(x)\sin(y)$

So, by substitution, we acquire:

$(\cos(x)\cos(y)+\sin(x)\sin(y))-(\cos(x)\cos(y)-\sin(x)\sin(y))=2\sin(x)\sin(y)$

Distribute:

$\cos(x)\cos(y)+\sin(x)\sin(y)-\cos(x)\cos(y)+\sin(x)\sin(y)=2\sin(x)\sin(y)$

The first and third term will cancel:

$\sin(x)\sin(y)+\sin(x)\sin(y)=2\sin(x)\sin(y)$

Combine like terms:

$2\sin(x)\sin(y)\stackrel{\checkmark}{=}2\sin(x)\sin(y)$

5 0

3 years ago

Read 2 more answers

I need help on this one

umka2103 [35]

You seem to have gotten m∠2. Remember that ∠1 and ∠2 are alternate interior angles, meaning they're both equal. Since they gave you m∠1 as being 26°, you now know the measure of ∠2.

As for m∠3 and m∠4, If you look at ∠3 you'll see that it is complementary to ∠1 (They both add up to 90°), so if you subtract m∠1 from 90° you'll have found m∠3. You find m∠4 the same way.

Hope this helped.

6 0

3 years ago

Pls help it’s very very due soon! I will mark brainlist, rate 5 stars, give you ~30 points, and thank.

Zanzabum

Answer:

answer 8 weeks

Step-by-step explanation:

7 0

2 years ago

Find the volume of the sphere to the nearest whole number. Use pi = 3.14. A. 131 in. 3 B. 393 in. 3 C. 4,187 in. 3 D. 523 in. 3

Westkost [7]

The answer is B. That's what I got

5 0

3 years ago

Please hurry! If you don't know it, that's okay.

makvit [3.9K]

Answer:

The answer is (x,y)=(-10,-7)

Step-by-step explanation:

The solution comes from replace x= -10 into the equation of y=2/5 x -3.
Replacement of x= -10 into y = 2/5 x -3 results: $y=\frac{2}{5}\times{(-10)}-3=2\times{(-2)} -3=-4-3=-7$ .

7 0

3 years ago